1. Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, Germany
2. Agriculture and Agri-Food Canada, Wm. Saunders Building, Ottawa, Ontario K1A 0C6, Canada
3. Harvard University Herbaria, 22 Divinity Avenue, Cambridge, Massachusetts 01238, U.S.A.
4. Botanic Garden and Botanical Museum Berlin-Dahlem, Freie Universität Berlin, Germany;, Email: w.berendsohn@bgbm.org